Ext.axd in page load times wrong

Recently used ext.net to make a page when the page is always loaded when the error, took 1 hours to find the results of the method. Later debug error js, found the error statement is because A.setelement (), and later analysis of a definition found that a is Gridpanel scroll attribute. Autoscroll=true is added to the Gridpanel attribute found in the code, and then everything is fine after you remove the attribute. Therefore, sometimes encountered ext-all.js error can debug the error code, and then find the relevant definition of the Error object, it may be because of a property set problems caused by the error.

Ext.axd in page load times wrong